Figure 4From: Adaptive expansion of the maize maternally expressed gene (Meg) family involves changes in expression patterns and protein secondary structures of its membersSelective sweeps in maize Meg gene region identified by composite-likelihood analysis. We used a spatially-explicit likelihood model to identify recent selective sweeps within the region of maize chromosome 7S containing the Meg gene array from polymorphism data (see Methods). We plot the log-likelihood support in favor of a selective sweep model along chromosome position. A dotted horizontal line indicates the empirically-derived 0.05 significance cutoff, with log-likelihood greater than the dotted line indicating significant support for a selective sweep. (A) We plot support for a selective sweep across the 30-Mb region of chromosome 7S containing the Meg gene region. (B) Close-up of the chromosomal region containing the Meg gene cluster, with each Meg gene’s coding sequence indicated.Back to article page